Is a fine for speeding based of the average speed or the instantaneous speed? Explain

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

James is trying to prove newton's 2nd law of motion. he tries to move four different objects with different masses, shapes, and sizes from point a to point b. the objects are a toy car, a car, a refrigerator, and a kitchen table. after some experimentation, he finds that force is dependent on the mass of the object, rather than it's size or shape. the object that takes the most force to move is the

What does the law of conservation of mass state?